Sand-sifter.



J. C. EVBRSON.

SAND SIPTBR.

APPLIOATION FILED 1,111.26. 1912.

1,684,323. Patented Jan. 13, 1914.

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J. C. EVBRSON.

SAND SIFTER. APPLICATION FILED JAN.26, 1912.

Patented Jan. 13, 1914.

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JOSEPH C. EVERSON, 0F COLFAX, WIS(ONSIN.l

SAND-SIFTER.

Specification of Letters Patent.

To all whom it may concern.'

Be it known that I, JOSEPH C. EvnRSoN, a citizen of the United States,and a resident of Colfax, in the county of Dunn and State of lVisconsin,have invented certain new and useful Improvements in Sand-Sifters, ofwhich the following is a specification, reference being had to theaccompanying drawings.

This invention has relation to certain new and useful improvements inportable sand sifters; and the object of my invention is to provide awheel supported device of this general character, of a compact anddurable construction which may be drawn to the point of loading toreceive the sand and then to the point of delivery to discharge the sandin sifted condition, and my invention includes a frame carrying shellhaving a screen bot-tom and a set of agitating blades to stir up thesand, which drop-s upon a curved shield forming a chute in one positionand serving as a door to close the bottom of the shell, the stones andother tailings being arranged to pass out of the rear of the shell.

N ith these and other objects in view the present invention consists inthe combination and arrangement of parts as will be hereinafter morefully described and finally pointed out in the appended claim, it beingfurther understood that changes in the specie structure shown anddescribed may be made within the scope of the claim, without departingfrom the spirit of the invention.

In the accompanying drawings forming a part of this specification and inwhich like numerals of reference indicate similar parts in the severalviews: Figure 1, shows a side elevational view with parts broken away ofa sand sifter including my invention. Fig. 2, is a central sectionalview with parts broken away. Fig. 3, is a section on line 3, 3, Fig. 2,looking in the direction of the arrow. Fig. 4, shows a rear View.

In my present invention I provide a sand sifter and cleaner which may beused as a vehicle in haulingv sand from a certain point and then beingdrawn to the delivering point where the sand is sifted while beingunloaded. The cleaner is, however, primarily intended to be used as asifter and is arranged to be brought into power connection with anengine or other driving means, whereby the agitating blades may beactuated in sifting the sand.

Patented Jan. 13,1914.

Application filed January 26, 1912. Serial No. 673,703.

In the drawings the numerals 1 and 2 designate the base and end sills,and the numerals 3, 4, 5, and 6, the uprights supporting the top bars 7,8 and 9. In addition, I employ the two spaced transversely heldsupporting bars 10 and 11, these bars being clearly shown in Fig. 2.

Held between the uprights 3 is the seat 12, which is braced by means ofthe bars 13 and has the back 14, this construction being shown in Fig.2.

Secured to the transverse supporting bars 10 and 11, are the bearings 1and 2, and revolubly held within these bearings is the driven shaft 3',which at its forward end carries the belt pulley 4.

Held to the forward transverse member 2,

as shown in Fig. 2, is the bolster 5', to which is secured the axle 10,the aXle being held to the frame by means of the king pin 17.

Secured to the rear of the machine is the axle 18. As shown, the axles10 and 18 are provided with the wheels 19 and 20, so that this frame maybe readily transported.

Secured within the frame, as described, is a frusto-conical shell madeof sheet metal including the frusto-conical member 2O having the forwardend 21 and the rear end 22. As shown, the largest end of thefrustoconical shell extends toward the rear. The driven shaft 3 passesthrough suitable openings within the ends 21 and 22 and is held withinthe bearings 1 and 2, as clearly shown in Fig. 2.

The frusto-conical shell 20 has an opening within the bottom extendingthe full length of the shell, and covering this opening is a screen Q5.Vithin the rear the member 22, as shown in Fig. 4, is provided with anaperture 26, this aperture being clearly shown in Fig. 4, and closingthis aperture is the end gate 2T, hingedly secured to the shell as shownin Fig. 2. rlhis gate 27 has an ear 23 arranged for co-action with theear 29, these ears 28 and 29 being apertured'to receive a suitablesecuring pin 30. 1When the gate 2T is closed, the aperture 26 within therear of the shell is securely closed.

Pivotally held upon a bar 31 secured to the rear bolster 2 of the frame,as shown in Fig. 2, is the recurved end 33 of the curved shield 34, thisshield serving as a chute when arranged in one position and closing uponsaid screen to form a sand tight connection with the shell initsremaining position. As shown in Fig. 1, the shield is provided withthe ears carrying the hooks 36, Which by means of a turn buckle 37 issecured to the hook 38 arranged to engage the ears 39 secured to theshell 20, and the ears 40 secured to the hopper, these last mentionedears being engaged When the shield is closed against the shell. By meansof the turn buckle 37, the shield can be so adjusted as to be securelyheld against the bottom of the shell. This is essential, as in drawingthe device over rough ground with a' load of sand, the sand Would joltout of the shell if the shield were not securely held to the same. 1

Fastened to the shaft 3, by any suitable means are the hubs 4l, fromWhich radiate the arms 42, these arms carrying the agitating blades 43,more clearly shown in Fig. 3.

` As disclosed, these blades 43 are arranged to pass over the screen 25.

In the use of the sifter, the shaft 3 is suitably actuated, in that adriving belt may be passed over the pulley 4. The shield 34 is then setin a slanting position, as shown in Fig l, being held by the adjustablehooks. The rear gate 27 is opened, in which position the same is alsoheld slanting, but slanting in a direction opposite to the shield 34.NOW, on rotating the blades 43, the sand above the screen is agitatedwhich results in the sand sifting through the screen upon the shield 34and shooting down the same, the stones and other coarse matter, however,passing toward the rear of the frusto-conical shell and tail over thegate 27, so that the sand may be collected in one pile and the coarsetailings in a separate pile.

The device is simple of construction and positive of operation.

It is of course understood that if desired a gasolene or other enginecould be secured directly to the frame.

Having thus described my said invention, what I claim as new and desireto secure by United States Letters Patent is r- The combinationlwith aportable frame, of a frusto-conical shell secured Within said framehaving an o ening Within the bottom extending the fullj length of theshell, a hopper entering the smallest end of said shell from above, anaperture bein provided within the largest end of said she l near thebottom, a hinged gate closing said aperture, a screen covering saidbottom opening, a curved shield serving as a chute pivotally secured atone end to the largest end of said shell, ears secured to said shell,adjustable hooks carried by said shield to engage said ears, said shieldclosing upon said screen in one position, a driven shaft assing throu hsaid shell, arms extending rom said sha and agitating blades secured tosaid arms arranged to pass over said screen, all arranged as and for thepurpose set forth.

In testimony whereof I affix my signature, in presence of two Witnesses.

JOSEPH C. EVERSON.

Witnesses:

Guo. T. VORLAND, OLE EvERsoN.

Copies of this patent may be obtained for tlve cents each, by addressingthe Commissioner of Patenti, Washington, D. C.

